CN207246148U - A kind of harvester hand control valve - Google Patents
A kind of harvester hand control valve Download PDFInfo
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- CN207246148U CN207246148U CN201721245679.6U CN201721245679U CN207246148U CN 207246148 U CN207246148 U CN 207246148U CN 201721245679 U CN201721245679 U CN 201721245679U CN 207246148 U CN207246148 U CN 207246148U
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Abstract
The utility model provides a kind of harvester hand control valve, belongs to technical field of hydraulic pressure.It solves the problems, such as that existing harvester hand control valve control stability and precise degrees are poor.This harvester hand control valve includes valve body, and reversing control valve one connects oil inlet and oil return opening with reversing control valve two by series-parallel mode；The control oil circuit one of reversing control valve one can be connected with the control port one on valve body, control and fixed orifice is provided with oil circuit one, also have connection oil circuit on reversing control valve one；Reversing control valve two has oil feeding line and oil inlet oil circuit, throttling pore is provided with oil inlet oil circuit, reversing control valve two control oil circuit two and control oil circuit three can respectively with the control port two on valve body and control port tee joint, reversing control valve two also has the switching oil circuit connected with the switching hydraulic fluid port on valve body, and oil feeding line is connected with switching oil circuit by flow pressure control valve.This harvester hand control valve improves control accuracy and stability.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, is related to a kind of harvester hand control valve.
Background technology
Harvester is the machinery of integration harvesting crops, disposable to complete harvesting, threshing, and grain is focused on storage
Grain, is then being transported on transport vehicle by storehouse by conveyer belt.For example, current rice harvester main actions have five：
Reel lift, gun barrel lifting, gun barrel rotation, taiwan cut off and landing and left and right turn.Rice harvesting machine hydraulic system is configurable to
Reel lift, gun barrel lift and rotate to be integral valve, and taiwan cut off and landing and left and right turn are integrated valve.
The integral valve of taiwan cut off and landing and left and right turn, such as the applicant once research and develop and apply for Chinese patent【Application number
201520287810.X；Authorization Notice No. CN204610967U】A kind of agricultural machinery ceding of Taiwan switching valve, including valve body, positioned at valve body
Interior steering valve chamber and lifting valve chamber, have oil inlet and oil return opening on valve body, have what is be connected with lifting valve chamber on valve body
Oil inlet one, oil return opening one and lifting work mouth, also have with turning to left-hand rotation working hole, the right-hand rotation work that valve chamber is connected on valve body
Make mouth, steering cylinder oil return opening, oil inlet two and oil return opening two, oil return opening one, oil return opening two pass through drainback passage and oil return opening
Connection, oil inlet one are connected by oil inlet passage one with oil inlet, and oil inlet two is connected by oil inlet passage two with oil inlet one,
Turn to valve chamber and lift valve intracavitary is respectively arranged with the steering valve rod being parallel to each other and lifting valve rod, lifting valve rod can be along liter
Drop valve chamber, which slides, makes lifting work mouth be connected with oil inlet one or oil return opening one, and turning to valve rod can slide along valve chamber is turned to
The selection of oil inlet two is set to be connected with left-hand rotation working hole, right-hand rotation working hole or steering cylinder oil return opening.
Above-mentioned agricultural machinery ceding of Taiwan switching valve can control taiwan cut off and landing and left and right turn, and control reel lift, gun barrel liter
Drop and rotating control valve still need to be redesigned.
And existing harvester control valve, for example, Chinese patent【Application number 201520747649.X；Authorization Notice No. CN
204985134U】A kind of disclosed four tunnel of monoblock type controls reversal valve, including valve body, the oil inlet being arranged on valve body, oil return
Mouth, the left interface of steering cylinder, the right interface of steering cylinder, steering cylinder oil return interface, unloading oil cylinder rodless cavity interface, unloading oil cylinder
Rod chamber interface, ceding of Taiwan oil cylinder interface and winder oil cylinder interface, are provided with interface left with steering cylinder, steering oil on valve body
The right interface of cylinder, the steering cylinder spool control valve of steering cylinder oil return orifice and unloading oil cylinder rodless cavity interface, unloading oil cylinder
The unloading oil cylinder spool control valve of rod chamber orifice and the ceding of Taiwan oil cylinder spool control valve of ceding of Taiwan oil cylinder orifice and group standing grain
The overflow valve taken turns the winder oil cylinder spool control valve of oil cylinder orifice and connected with oil inlet.
Above-mentioned four tunnels control structure of reversing valve is simple, easy to operate, light-weight, compact-sized.But above-mentioned control valve
Structure has problems in that, oil circuit is more so that the pressure loss is larger in valve body, and hydraulic oil is insufficient or pressure change
It is larger, cause the oil pressure of control oil unstable, have impact on the stability and precise degrees of control.Also, existing hydraulic pressure commutation
Valve arrangement, speed governing area is shorter, easily produces impacting with high pressure, and after valve rod returns to middle position, the hydraulic lock return time is longer, is unfavorable for holding
The locking of row mechanism.
The content of the invention
The purpose of this utility model is that there are the above problem for existing technology, it is proposed that a kind of harvester controls manually
Valve, the technical problem that the utility model solves are how to make the executing agency of hand control valve control harvester stable, precisely dynamic
Make.
The purpose of this utility model can be realized by following technical proposal：A kind of harvester hand control valve, the hand
Dynamic control valve includes valve body, has oil inlet and oil return opening on the valve body, has reversing control valve one in the valve body and changes
To control valve two, it is characterised in that the reversing control valve one connects oil inlet with reversing control valve two by series-parallel mode
Mouthful and oil return opening, also there is on the valve body control port one, control port two, control port three and switching hydraulic fluid port；It is described to change
Control oil circuit one to control valve one can be connected with the control port one on valve body, and fixation is provided with the control oil circuit one
Throttle orifice, also has the connection oil circuit for being used for connecting with reversing control valve two on the reversing control valve one；The commutation control
Valve two, which has, to be used for and the connection oil circuit oil feeding line being connected and the oil inlet oil circuit being connected with oil feeding line, the oil inlet oil
Be provided with throttling pore on road, the control oil circuit two of the reversing control valve two and control oil circuit three can respectively with the control on valve body
Liquefaction mouth two and control port tee joint, the reversing control valve two also have the switching oil connected with the switching hydraulic fluid port on valve body
Road, the oil feeding line are connected with switching oil circuit by flow pressure control valve.
Difference lies in the reversing control valve one and reversing control valve two of this harvester hand control valve are adopted with existing structure
Connected with series-parallel mode, reversing control valve two can only be acted when reversing control valve two is located at middle position, be prevented out
The possibility now malfunctioned.And by setting throttling pore on the oil inlet oil circuit of reversing control valve two, and in oil feeding line and turn
Connect oil circuit and flow pressure control valve is directly set so that the constant pressure differential of throttling pore inlet and outlet.Reversing control valve two commutates
When, the flow of oil inlet oil circuit gradually changes from small to large, until reaching the constant flow rate of throttling pore.So as to so that commutation control
The control oil circuit two of valve two processed and the flow of control oil circuit three are refined control and reduce the generation of fluctuation, play to execution machine
Structure is precisely controlled, and the stability of executing agency's action also significantly improves.Also, pass through the control oil circuit in reversing control valve one
Fixed orifice is set on one, the flow of control oil circuit one can be made, impact phenomenon caused by avoiding over feeding, further carries
The stability for the executing agency that high reversing control valve one controls.
In above-mentioned harvester hand control valve, the reversing control valve one and reversing control valve two include control oil
Chamber, the control oil pocket is interior to have oil-feed tank, oil-recovery tank, control chamber oil groove one, control chamber oil groove two and control chamber oil groove three, institute
The quantity for stating oil-feed tank is two, and one of oil-feed tank be located at at the position of control chamber oil groove three adjacent, another
Oil-feed tank is located at two adjacent side of control chamber oil groove one and control chamber oil groove；The control chamber oil groove one and control chamber oil groove two
Opposite side is respectively provided with an oil-recovery tank.
Compared with five oil duct hydraulicdirectional control valve structures of the prior art, by setting multiple oil-feed tanks, oil-recovery tank, middle position
When, oil-feed tank and control chamber oil groove three are gone rancid by the groove of valve rod, and circulation area is gone rancid bigger compared to stem internal, are reduced
The pressure loss of middle position.Meanwhile the speed governing area of reversing control valve one and reversing control valve two is longer so that executing agency runs
It is more steady, avoid the generation of impact phenomenon.
In above-mentioned harvester hand control valve, one position of control chamber oil groove is placed in the middle, the control chamber oil groove two
It is located at the both sides of control chamber oil groove one respectively with control chamber oil groove three, with the two adjacent oil-recovery tanks of control chamber oil groove positioned at control oil
One end of chamber, the other end of the control oil pocket also have an oil-recovery tank adjacent with three position of control chamber oil groove.By
Control chamber oil groove three close to control the oil pocket other end position at set oil-recovery tank, to control oil pocket and valve rod opposite side it is close
Seal carries out low-voltage variation, avoids being controlled the impacting with high pressure of chamber oil groove three.
In above-mentioned harvester hand control valve, the control chamber oil groove one and control chamber oil groove of the reversing control valve one
Two connect with control oil circuit one, and hydraulic lock is provided with the control oil circuit one.By setting hydraulic lock executing agency to exist
Being failure to actuate makes to be locked.
In above-mentioned harvester hand control valve, winder control valve rod, institute are provided with the reversing control valve one
State when winder control valve rod is located at middle position and form Y type oil circuits.Reversing control valve uses Y type oil circuits, when reversing control valve one
When middle position, hydraulic lock can returning quickly, without being separately provided hydraulic pressure pore structure on valve body.
In above-mentioned harvester hand control valve, the winder control valve rod of the reversing control valve one corresponds to control chamber
The position of oil groove three and oil-feed tank has logical tank deck rank one, and the winder control valve rod of the reversing control valve one corresponds to control chamber
Oil groove one and oil-recovery tank have logical tank deck rank two.When being connected by setting logical tank deck rank one to increase control chamber oil groove three with oil-feed tank
In-line, logical tank deck rank two is set so that when one middle position of reversing control valve forms Y type oil circuits.
In above-mentioned harvester hand control valve, gun barrel control valve rod is provided with the reversing control valve two, it is described
Gun barrel control valve rod forms O-shaped oil circuit when being located at middle position.
In above-mentioned harvester hand control valve, the control chamber oil groove one of the reversing control valve two is by controlling oil circuit
Two connect with the control port two on valve body, and the control chamber oil groove two is by controlling oil circuit three and control port tee joint, institute
Control chamber oil groove three is stated to connect with switching hydraulic fluid port by oil circuit of transferring.Control port two, control can be given by reversing control valve two
Liquefaction mouth three and switching hydraulic fluid port fuel feeding.
In above-mentioned harvester hand control valve, also there is reversing control valve three, the commutation control in the valve body
Valve three is connected the oil inlet and oil return opening of valve body, the control of the reversing control valve three with reversing control valve one by way of in parallel
Fixed orifice is provided with liquefaction mouth four.Reversing control valve three is set by way of in parallel with reversing control valve one, is commutated
Control valve one and reversing control valve three distribute hydraulic oil, realize to being controlled while multiple executing agencies.
In above-mentioned harvester hand control valve, the reversing control valve two with reversing control valve one and commutation by controlling
The mode that valve three processed is connected connects the oil inlet and oil return opening of valve body.Such connection mode so that reversing control valve one, commutation
The globality of control valve two and reversing control valve three is more preferable, it is possible to achieve cooperates the action of control executing agency, more reasonably
Hydraulic oil is assigned with, prevents malfunction.
In above-mentioned harvester hand control valve, the reversing control valve three uses the knot identical with reversing control valve two
Structure.
In above-mentioned harvester hand control valve, unloading grain tube control valve rod, institute are provided with the reversing control valve three
State when unloading grain tube control valve rod is located at middle position and form Y type oil circuits, the control chamber on the valve body with the reversing control valve three
Oil groove one and control chamber oil groove two are provided with hydraulic pressure by controlling oil circuit four to be connected with control port four on the control oil circuit four
Lock.
Compared with prior art, it is the advantages of this harvester hand control valve：
1st, passing through for this harvester hand control valve sets reversing control valve one and reversing control valve two in valve body, commutation
Control valve one is connected with reversing control valve two by connection in series-parallel, for controlling multiple executing agencies, realizes multiple commutation controls
Integrating for valve, simplifies the structure of control valve.
2nd, this harvester hand control valve is provided with fixed orifice on the control oil circuit one of reversing control valve one, commutation
Throttling pore is set on the oil inlet oil circuit of control valve one, and directly sets flow pressure to control in oil feeding line and switching oil circuit
Valve so that the precision and stability of hand control valve control executing agency action significantly improves.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of this harvester hand control valve.
Fig. 2 is the main structure diagram of this harvester hand control valve.
Fig. 3 is the present invention looks up structural representation of this harvester hand control valve.
Fig. 4 is the side structure schematic view of this harvester hand control valve.
Fig. 5 is the schematic cross-sectional view in A-A directions in Fig. 3.
Fig. 6 is the schematic cross-sectional view in B-B directions in Fig. 3.
Fig. 7 is the schematic cross-sectional view in E-E directions in Fig. 3.
Fig. 8 is the schematic cross-sectional view in C-C directions in Fig. 4.
Fig. 9 is the schematic cross-sectional view in D-D directions in Fig. 4.
In figure, 1, valve body；P, oil inlet；T, oil return opening；BH, control port one；A, control port two；B, control port
Three；C, switching hydraulic fluid port；XL, control port four；2nd, reversing control valve one；2a, control oil circuit one；2b, connection oil circuit；G1, dial standing grain
Wheel control valve rod；3rd, reversing control valve two；3a, oil feeding line；3b, oil inlet oil circuit；3b1, throttling pore；3c, control oil circuit two；
3d, switching oil circuit；G2, gun barrel control valve rod；4th, flow pressure control valve；5th, reversing control valve three；5a, control oil circuit four；G3、
Unloading grain tube controls valve rod；6th, hydraulic lock；7th, tank deck rank one is led to；8th, tank deck rank two is led to；9th, fixed orifice；10th, main safety valve；Q、
Control oil pocket；P1, oil-feed tank；T1, oil-recovery tank；A1, control chamber oil groove one；B1, control chamber oil groove two；C1, control chamber oil groove three.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
This harvester hand control valve includes valve body 1, reversing control valve 1, reversing control valve 23, oil inlet P, oil return
Mouth T, one BH of control port, two A of control port, three B of control port and switching hydraulic fluid port C.
Introduced exemplified by the hand control valve that the present embodiment rotates for control reel lift, unloading grain tube lifting and gun barrel
The embodiment of this harvester hand control valve.As shown in Figure 1, this harvester hand control valve further includes reversing control valve
35, also there is four XL of control port on valve body 1.Reversing control valve 1, reversing control valve 23 and reversing control valve 35 collect
Into being arranged in valve body 1, reversing control valve 1 connects oil inlet P and oil return with reversing control valve 23 by series-parallel mode
Mouth T, the mode in parallel with reversing control valve 35 of reversing control valve 1 connect oil inlet P and oil return inlet T.Preferably,
In the present embodiment, reversing control valve 23 is connected valve body 1 by way of connecting with reversing control valve 1 and reversing control valve 35
Oil inlet P and oil return inlet T.Main safety valve 10 is additionally provided between oil inlet P and oil return inlet T, main safety valve 10 is overflow valve.
As shown in Fig. 2, Fig. 3 and Fig. 5, one 2a of the control oil circuit energy and valve body of the reversing control valve 1 of reversing control valve 1
One BH of control port on 1 is connected, and makes reversing control valve 1 can be used in controlling reel lift.Such as Fig. 2, Fig. 3, Fig. 4 and
Shown in Fig. 6, control two 3c of oil circuit of reversing control valve 23 and three (not shown) of control oil circuit can respectively with valve body 1
Two A of control port is connected with three B of control port, and the switching oil circuit 3d and the switching hydraulic fluid port C on valve body 1 of reversing control valve 23 connect
It is logical, reversing control valve 23 is can be used in the hydraulic circuit for controlling gun barrel to rotate and exporting for connecting other control valve modules.
As shown in Fig. 2, Fig. 3 and Fig. 7, the control oil circuit four of reversing control valve 35 can be connected with four XL of control port on valve body 1 so that
Reversing control valve 35 can be used in controlling unloading grain tube lifting.
As shown in Fig. 5, Fig. 6 and Fig. 7, reversing control valve 1, reversing control valve 23 and reversing control valve 23 include control
There is oil-feed tank P1, oil-recovery tank T1, one A1 of control chamber oil groove, two B1 of control chamber oil groove and control in liquefaction chamber Q, control oil pocket Q
The quantity of chamber oil groove three C1, oil-feed tank P1 are two, and one of oil-feed tank P1 is positioned at adjacent with three C1 of control chamber oil groove
Position at, another oil-feed tank P1 is located at the adjacent sides of control chamber oil groove one A1 and two B1 of control chamber oil groove；Control chamber oil groove
The opposite side of two B1 of one A1 and control chamber oil groove is respectively provided with an oil-recovery tank T1.Set in the control oil pocket Q of reversing control valve 1
There is winder to control valve rod G1, gun barrel control valve rod G2, commutation control three are provided with the control oil pocket Q of reversing control valve 23
Control oil pocket Q in be provided with unloading grain tube control valve rod G3, winder control valve rod G1, gun barrel control valve rod G2 and unloading grain tube control
Valve rod G3 processed can be slided along corresponding control oil pocket Q controls each oil groove to connect or block, and is performed so as to each drive
Mechanism action.
As shown in Fig. 5, Fig. 6 and Fig. 7, preferably, one A1 positions of control chamber oil groove are placed in the middle, two B1 of control chamber oil groove
It is located at the both sides of one A1 of control chamber oil groove, the oil-recovery tank adjacent with two B1 of control chamber oil groove T1 respectively with three C1 of control chamber oil groove
In one end of control oil pocket Q, the other end of control oil pocket Q also has an oil-recovery tank adjacent with three C1 positions of control chamber oil groove
T1；By three C1 of control chamber oil groove close to control the oil pocket Q other ends position at set oil-recovery tank T1, to control oil pocket Q and
Control the sealing ring of valve rod opposite side to carry out low-voltage variation, avoid being controlled the impacting with high pressure of three C1 of chamber oil groove.
As shown in figure 5 and figure 7, reversing control valve 35 and the structure of reversing control valve 23 are essentially identical.Reversing control valve
The position that one 2 control valve rod corresponds to three C1 of control chamber oil groove and oil-feed tank P1 has logical tank deck rank 1, reversing control valve 1
Control valve rod correspond to control chamber oil groove one A1 and oil-recovery tank T1 there is logical tank deck rank 28.By setting logical tank deck rank 1 to increase
In-line when three C1 of control chamber oil groove is connected with oil-feed tank P1, when the logical tank deck rank 28 of setting causes one 2 middle position of reversing control valve
Form Y type oil circuits.One A1 of control chamber oil groove and two B1 of control chamber oil groove of reversing control valve 1 pass through hydraulic lock 6 and control oil
One 2a of road is connected, the oil inlet end of one A1 connections hydraulic lock of control chamber oil groove, 6 groove, the control of two B1 connections hydraulic lock 6 of control chamber oil groove
End processed.The unloading grain tube control valve rod G3 of reversing control valve 35 also forms Y type oil circuits when being located at middle position, have commutation control on valve body 1
One A1 of control chamber oil groove and two B1 of control chamber oil groove of valve 35 processed are controlled by controlling oil circuit four to be connected with four XL of control port
Hydraulic lock 6 is also equipped with oil circuit four.Fixed orifice 9 is both provided with control one 2a of oil circuit and control oil circuit four.
As shown in figure 5, also there is the connection oil circuit 2b for being used for connecting with reversing control valve 23 on reversing control valve 1.This
Also there is the connection oil circuit 2b for being used for connecting with reversing control valve 23 in embodiment, on reversing control valve 35.Reversing control valve
Oil circuit 2b is connected on one 2 with three C1 of control chamber oil groove of reversing control valve 35 to be connected, then by being connected on reversing control valve 1
Oil circuit 2b is connected with reversing control valve 23, realizes reversing control valve 23 and reversing control valve 1 and the string of reversing control valve 35
It is in parallel.
As shown in fig. 6, the gun barrel control valve rod G2 of reversing control valve 23 forms O-shaped oil circuit when being located at middle position.Such as Fig. 8 and
Shown in Fig. 9, reversing control valve 23, which has, to be used to be connected with the connection oil circuit 2b oil feeding line 3a being connected and with oil feeding line 3a
Throttling pore 3b1, oil feeding line 3a and switching oil circuit 3d are provided with logical oil inlet oil circuit 3b, oil inlet oil circuit 3b and passes through flow pressure
Force control valve 4 is connected.One A1 of control chamber oil groove of reversing control valve 23 is by controlling two 3c of oil circuit and the control oil on valve body 1
Mouth two A connections, two B1 of control chamber oil groove is by controlling three (not shown) of oil circuit to be connected with three B of control port, control chamber oil
Three C1 of groove is connected by the oil circuit 3d that transfers with switching hydraulic fluid port C.Two A of control port, control oil can be given by reversing control valve 23
Three B of mouth and switching hydraulic fluid port C fuel feeding.
This harvester hand control valve is integrated with multiple reversing control valves in valve body 1, can control harvester reel,
The action of multiple executing agencies such as unloading grain tube and gun barrel, integrated level higher, each reversing control valve pass through the oil circuit inside valve body 1
Connection, simplifies connecting line.This harvester hand control valve on the oil inlet oil circuit 3b of reversing control valve 23 also by setting
Throttling pore 3b1, and flow pressure control valve 4 is directly set in oil feeding line 3a and switching oil circuit 3d so that throttling pore 3b1
The constant pressure differential of inlet and outlet.When reversing control valve 23 commutates, the flow of oil inlet oil circuit 3b gradually changes from small to large, until
Reach the constant flow rate of throttling pore 3b1.So as to so that two 3c of control oil circuit and the control (figure of oil circuit three of reversing control valve 23
Not shown in) flow be refined control and reduce the generation of fluctuation, play and executing agency be precisely controlled, executing agency
The stability of action also significantly improves.Also, by setting fixed orifice on one 2a of control oil circuit of reversing control valve 1
9, the flow of one 2a of control oil circuit can be made, avoid over feeding, caused impact phenomenon, further improves reversing control valve one
The stability of the executing agency of 2 controls.
Reversal valve in this harvester hand control valve is by setting multiple oil-feed tank P1, oil-recovery tank T1, during middle position, oil inlet
By controlling the groove of valve rod to go rancid, circulation area is gone rancid more compared to control stem internal by groove P1 and three C1 of control chamber oil groove
Greatly, the pressure loss of middle position is reduced.Meanwhile reversal valve speed governing area is longer so that executing agency's operation is more steady, avoids rushing
Hit the generation of phenomenon.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of harvester hand control valve, the hand control valve includes valve body (1), has oil inlet on the valve body (1)
(P) and oil return opening (T), there is reversing control valve one (2) and reversing control valve two (3) in the valve body (1), it is characterised in that
The reversing control valve one (2) connects oil inlet (P) and oil return opening (T) with reversing control valve two (3) by series-parallel mode,
Also there is control port one (BH), control port two (A), control port three (B) and switching hydraulic fluid port (C) on the valve body (1)；Institute
Stating the control oil circuit one (2a) of reversing control valve one (2) can be connected with the control port one (BH) on valve body (1), the control
Fixed orifice (9) is provided with oil circuit one (2a), also has on the reversing control valve one (2) and is used for and reversing control valve two
(3) the connection oil circuit (2b) of connection；The reversing control valve two (3) has the fuel feeding oil for being used to be connected with connection oil circuit (2b)
Road (3a) and the oil inlet oil circuit (3b) being connected with oil feeding line (3a), are provided with throttling pore on the oil inlet oil circuit (3b)
(3b1), the control oil circuit two (3c) of the reversing control valve two (3) and control oil circuit three can respectively with the control on valve body (1)
Hydraulic fluid port two (A) is connected with control port three (B), and the reversing control valve two (3) also has and the switching hydraulic fluid port on valve body (1)
(C) the switching oil circuit (3d) of connection, the oil feeding line (3a) and switching oil circuit (3d) pass through flow pressure control valve (4) phase
Even.
2. harvester hand control valve according to claim 1, it is characterised in that the reversing control valve one (2) and change
Include control oil pocket (Q) to control valve two (3), there is oil-feed tank (P1), oil-recovery tank (T1), control in the control oil pocket (Q)
Chamber oil groove one (A1), control chamber oil groove two (B1) and control chamber oil groove three (C1) processed, the quantity of the oil-feed tank (P1) is two
It is a, and one of oil-feed tank (P1) is located at the position adjacent with control chamber oil groove three (C1), another oil-feed tank (P1) position
In control chamber oil groove one (A1) and the adjacent side of control chamber oil groove two (B1)；The control chamber oil groove one (A1) and control chamber oil groove
The opposite side of two (B1) is respectively provided with an oil-recovery tank (T1).
3. harvester hand control valve according to claim 2, it is characterised in that control chamber oil groove one (A1) position
Between two parties, the control chamber oil groove two (B1) and control chamber oil groove three (C1) are located at the both sides of control chamber oil groove one (A1) respectively, with
The adjacent oil-recovery tank (T1) of control chamber oil groove two (B1) is positioned at one end of control oil pocket (Q), the other end of the control oil pocket (Q)
Also there is an oil-recovery tank (T1) adjacent with control chamber oil groove three (C1) position.
4. the harvester hand control valve according to Claims 2 or 3, it is characterised in that the reversing control valve one (2)
Control chamber oil groove one (A1) and control chamber oil groove two (B1) are connected with control oil circuit one (2a), are set on the control oil circuit one (2a)
It is equipped with hydraulic lock (6).
5. the harvester hand control valve according to Claims 2 or 3, it is characterised in that in the reversing control valve one (2)
Winder control valve rod (G1) is provided with, the winder control valve rod (G1) forms Y type oil circuits when being located at middle position.
6. harvester hand control valve according to claim 5, it is characterised in that the reversing control valve one (2) is dialled
The position of the corresponding control chamber oil groove three (C1) of standing grain wheel control valve rod (G1) and oil-feed tank (P1) has logical tank deck rank one (7), described
The corresponding control chamber oil groove one (A1) of winder control valve rod (G1) of reversing control valve one (2) and oil-recovery tank (T1) have logical tank deck
Rank two (8).
7. the harvester hand control valve according to Claims 2 or 3, it is characterised in that in the reversing control valve two (3)
Gun barrel control valve rod (G2) is provided with, the gun barrel control valve rod (G2) forms O-shaped oil circuit when being located at middle position.
8. harvester hand control valve according to claim 7, it is characterised in that the control of the reversing control valve two (3)
Chamber oil groove one (A1) processed is by controlling oil circuit two (3c) to be connected with the control port two (A) on valve body (1), the control chamber oil groove
For two (B1) by controlling oil circuit three to be connected with control port three (B), the control chamber oil groove three (C1) passes through oil circuit of transferring (3d)
Connected with switching hydraulic fluid port (C).
9. according to the harvester hand control valve described in claim 1 or 2 or 3, it is characterised in that also have in the valve body (1)
There is reversing control valve three (5), the reversing control valve three (5) is connected valve body with reversing control valve one (2) by way of in parallel
(1) oil inlet (P) and oil return opening (T), are provided with fixed restriction in the control port four (XL) of the reversing control valve three (5)
Hole (9).
10. according to the harvester hand control valve described in claim 1 or 2 or 3, it is characterised in that the reversing control valve two
(3) with being connected the oil inlet (P) of valve body (1) by way of reversing control valve one (2) and reversing control valve three (5) series connection and returning
Hydraulic fluid port (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245679.6U CN207246148U (en) | 2017-09-26 | 2017-09-26 | A kind of harvester hand control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245679.6U CN207246148U (en) | 2017-09-26 | 2017-09-26 | A kind of harvester hand control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246148U true CN207246148U (en) | 2018-04-17 |
Family
ID=61885531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721245679.6U Withdrawn - After Issue CN207246148U (en) | 2017-09-26 | 2017-09-26 | A kind of harvester hand control valve |
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| Country | Link |
|---|---|
| CN (1) | CN207246148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420367A (en) * | 2017-09-26 | 2017-12-01 | 浙江海宏液压科技股份有限公司 | A kind of harvester hand control valve |
-
2017
- 2017-09-26 CN CN201721245679.6U patent/CN207246148U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420367A (en) * | 2017-09-26 | 2017-12-01 | 浙江海宏液压科技股份有限公司 | A kind of harvester hand control valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20230630 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20230630 |